Last Updated: June 9, 2026

Purdue Pharma Lp Company Profile


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Summary for Purdue Pharma Lp
International Patents:287
US Patents:42
Tradenames:10
Ingredients:9
NDAs:10

Drugs and US Patents for Purdue Pharma Lp

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Purdue Pharma Lp OXYCONTIN oxycodone hydrochloride TABLET, EXTENDED RELEASE;ORAL 022272-003 Apr 5, 2010 RX Yes No 8,894,988 ⤷  Start Trial Y ⤷  Start Trial
Purdue Pharma Lp HYSINGLA ER hydrocodone bitartrate TABLET, EXTENDED RELEASE;ORAL 206627-003 Nov 20, 2014 AB RX Yes No 9,750,703 ⤷  Start Trial Y ⤷  Start Trial
Purdue Pharma Lp HYSINGLA ER hydrocodone bitartrate TABLET, EXTENDED RELEASE;ORAL 206627-005 Nov 20, 2014 AB RX Yes No 9,545,380 ⤷  Start Trial ⤷  Start Trial
Purdue Pharma Lp ADHANSIA XR methylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 212038-004 Feb 27, 2019 DISCN Yes No 9,974,752 ⤷  Start Trial Y ⤷  Start Trial
Purdue Pharma Lp ADHANSIA XR methylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 212038-001 Feb 27, 2019 DISCN Yes No 10,688,060 ⤷  Start Trial Y ⤷  Start Trial
Purdue Pharma Lp ADHANSIA XR methylphenidate hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 212038-006 Feb 27, 2019 DISCN Yes No 10,512,613 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for Purdue Pharma Lp

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Purdue Pharma Lp ZURNAI (AUTOINJECTOR) nalmefene hydrochloride SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS 218590-001 Aug 7, 2024 9,629,959 ⤷  Start Trial
Purdue Pharma Lp OXYCONTIN oxycodone hydrochloride TABLET, EXTENDED RELEASE;ORAL 022272-007 Apr 5, 2010 7,683,072 ⤷  Start Trial
Purdue Pharma Lp HYSINGLA ER hydrocodone bitartrate TABLET, EXTENDED RELEASE;ORAL 206627-004 Nov 20, 2014 10,130,591 ⤷  Start Trial
Purdue Pharma Lp OXYCONTIN oxycodone hydrochloride TABLET, EXTENDED RELEASE;ORAL 022272-007 Apr 5, 2010 7,674,799 ⤷  Start Trial
Purdue Pharma Lp BUTRANS buprenorphine FILM, EXTENDED RELEASE;TRANSDERMAL 021306-003 Jun 30, 2010 RE41571 ⤷  Start Trial
Purdue Pharma Lp HYSINGLA ER hydrocodone bitartrate TABLET, EXTENDED RELEASE;ORAL 206627-007 Nov 20, 2014 9,056,052 ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration
Paragraph IV (Patent) Challenges for PURDUE PHARMA LP drugs
Drugname Dosage Strength Tradename Submissiondate
➤ Subscribe Extended-release Tablets 30 mg, 40 mg, 80 mg, and 100 mg ➤ Subscribe 2015-05-08
➤ Subscribe Extended-release Tablets 30 mg and 60 mg ➤ Subscribe 2007-01-03
➤ Subscribe Transdermal System 5 mcg/hr, 10 mcg/hr, and 20 mcg/hr ➤ Subscribe 2013-06-06
➤ Subscribe Extended-release Tablets 20 mg, 60 mg, and 120 mg ➤ Subscribe 2015-04-15
➤ Subscribe Extended-release Tablets 15 mg ➤ Subscribe 2007-02-15
➤ Subscribe Transdermal System 15 mcg/hr ➤ Subscribe 2013-12-16

Supplementary Protection Certificates for Purdue Pharma Lp Drugs

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1685839 92292 Luxembourg ⤷  Start Trial PRODUCT NAME: COMBINAISON D OXYCODONE EN TANT QUE COMPOSANT A ET DE NALOXONE EN TANT QUE COMPOSANT B SOUS TOUTES LES FORMES PROTEGES PAR LE BREVET DE BASE
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description
Similar Applicant Names
Applicants may be listed under multiple names.
Here is a list of applicants with similar names.

Last updated: June 2, 2026

Pharmaceutical Competitive Landscape Analysis of Purdue Pharma LP: Market Position, Patent Strength, and Strategic Insights

Purdue Pharma LP sits at the center of the opioid and pain-management competitive landscape through controlled-substance brands and a multi-jurisdiction IP estate shaped by extensive litigation and bankruptcy-driven restructuring. Competitive positioning is most exposed in products tied to oral opioid formulations and REMS-era prescribing controls, while IP leverage is concentrated in formulation, prodrug or abuse-deterrent design, and method-of-use claims that have historically been litigated and challenged.


How does Purdue Pharma LP’s market position compare with other opioid manufacturers?

Purdue’s competitive footprint is defined by analgesics and opioid risk-management dynamics rather than broad diversification across therapeutic classes. The firm’s long-term competitive relevance is constrained by (1) controlled-substance regulation, (2) payer and prescriber migration to non-opioid or lower-risk pathways, and (3) the impact of bankruptcy restructuring on brand ownership, enforcement posture, and capital allocation.

Competitive axes that matter in opioid pain brands

  • Abuse-deterrent opioid (ADO) performance and label scope.
  • Formulation patents and secondary IP (treatment regimen, patient selection, titration schedules).
  • Payer and PBM coverage positioning driven by safety signals and opioid stewardship measures.
  • Distributor and prescriber access shaped by controlled-substance scrutiny.

Where Purdue competes most directly

Purdue competes most intensely with:

  • Branded opioid originators with ADO portfolios (industry peers with reformulation strategies).
  • Generic manufacturers entering at or near patent expiry using Paragraph IV routes.
  • Midsize specialty pain companies that target prescriber adoption through newer delivery formats and contracting.

What changes Purdue’s relative advantage

  • Abuse-deterrent differentiation matters when it is supported by label language, REMS compliance, and real-world tolerance for reclassification.
  • Litigation history and restructuring affect both willingness to enforce and available resources for additional filings.

What patents protect Purdue Pharma opioid products and how strong is the patent estate?

Purdue’s historical IP strategy emphasizes formulation and abuse-deterrence mechanisms in oral opioid systems. The practical strength of Purdue’s estate depends less on headline composition-of-matter and more on enforceability of secondary claims:

  • Formulation and manufacturing method claims for controlled release, gelling or barrier properties, or physical deterrents.
  • Process claims for scale-up, particle engineering, coating or barrier layers.
  • Method-of-use claims aligned to dosing schedules and specific patient populations.

Where patent strength typically concentrates for Purdue-style opioid portfolios

Abuse-deterrent formulation patents

  • Mechanical barriers (matrix or gelling excipients).
  • Chemical deterrents (conversion to inactive or less abusable forms).
  • Integrity controls that preserve release characteristics under manipulation.

Manufacturing and control strategy patents

  • Granulation and blending parameters that preserve deterrent performance.
  • Coating application and drying method parameters.
  • Quality-control process claims that tie manufacturing parameters to release behavior.

Method-of-use and label-aligned claims

  • Dosing titration strategies.
  • Indications tied to chronic pain management contexts.
  • Patient selection limitations that attempt to narrow carve-outs.

How to read Purdue’s patent strength in litigation terms

In opioid branded markets, the “strength” that drives value is the fraction of claims that survive:

  • Markman interpretation
  • Obviousness and written description
  • “Non-infringement by design” (generic design-around)

Patent families that repeatedly face ANDA Paragraph IV challenges tend to produce:

  • Settlements that delay generic entry
  • Narrowed enforceable scope after claim construction
  • Patent invalidation outcomes that reduce residual exclusivity value

Which Purdue Pharma products drive revenue and how does IP timing affect exposure?

Purdue’s competitive revenue exposure is linked to the lifespan of branded opioid demand under:

  • Patent and exclusivity windows
  • Litigation-driven launch delays for generics
  • Label and formulary decisions shaped by opioid safety policies

Revenue exposure framework used in competitive forecasting

  • Near-term exposure: pending expiry of core and secondary patents.
  • Mid-term exposure: remaining enforceable method-of-use and formulation claims plus market exclusivity.
  • Long-term exposure: whether abuse-deterrent designs continue to be differentiated versus generic ADO performance.

Key competitive risk points

  • Any shift in label language that reduces the clinical or mechanistic basis for deterrence differentiation.
  • Acceleration in generic challengers or increased settlement value offered to secure early launch.

When do Purdue Pharma’s key exclusivities and patents expire, and what generic entry risks exist?

For branded opioids, the generic entry risk is governed by:

  • The latest expiration of enforceable patents listed in FDA Orange Book
  • Whether exclusivity periods (patent term adjustments, pediatric exclusivity, marketing exclusivity) extend effective launch dates
  • Whether Paragraph IV challengers trigger litigation and settlement bottlenecks

How generic entry timing usually works in Purdue-style estates

  • ANDA Paragraph IV filing occurs before patent expiry, challenging one or more Orange Book listings.
  • Court litigation or settlement defines an entry calendar with “carve-out” patent scope.
  • Even after expiry, practical barriers can persist:
    • technical bioequivalence and ADO performance equivalency
    • manufacturing validation
    • potential future secondary claims

What generic entry risks look like operationally

  • Immediate post-expiry launch pressure from multiple ANDA applicants.
  • Increased likelihood of price compression.
  • Increased payer leverage to favor generics unless brand maintains meaningful differentiation and contracting advantages.

What is the Orange Book status of Purdue Pharma opioid products and how many patents are listed?

Orange Book status determines the “entry map” for ANDA competitors. The competitive analysis depends on:

  • Number of Orange Book patents per drug (and how many are formulation vs. method-of-use vs. manufacturing)
  • Earliest and latest expiration dates in the family
  • Whether patents are listed for strengths and dosage forms separately

Patent listing pattern that typically drives entry

  • High-volume oral opioid brands often show multiple Orange Book listings tied to:
    • drug product formulation
    • manufacturing method
    • use/indication

How to use Orange Book listings for risk scoring

  • Higher count of late-expiring patents reduces generic entry probability at the first expiry date.
  • Late-expiring formulation and method-of-use patents create litigation leverage and settlement value.

How do Paragraph IV challenges and ANDA litigation affect Purdue’s competitive position?

Paragraph IV challenges are the standard mechanism for generic entry against Orange Book-listed patents. For Purdue’s opioid portfolio, these challenges historically define:

  • How many patents get litigated
  • Settlement timelines
  • Whether courts narrow claim scope through construction

Competitive effects of ANDA litigation

  • Litigation creates delay and preserves brand revenues.
  • Settlement can shift future entry calendars to other contested patents.
  • Court rulings can invalidate claim types that are replicable across families.

What to watch in litigation outcomes

  • Whether judges construe “abuse deterrent” or controlled-release performance terms narrowly.
  • Whether manufacturing method claims are found too broad or indefinite.
  • Whether obviousness attacks combine multiple prior art disclosures with predictable formulation design changes.

Which biosimilar or biologic pathways compete with Purdue Pharma, and is biosimilar risk relevant?

Purdue’s core competitive identity is opioid and pain therapeutics, not biologics. Biosimilar risk is therefore not a primary exposure unless Purdue holds biologic assets through partnerships or acquisitions in pain management that include monoclonal antibodies or growth factor products.

Practical implication

Competitive risk is predominantly ANDA-driven for small molecules and abuse-deterrent opioids rather than biosimilar-driven.


What formulations are protected by Purdue Pharma and how do abuse-deterrent designs change competitive outcomes?

In opioid markets, formulation IP is central because it:

  • Creates a differentiator at the product level
  • Produces multiple defensible patent categories
  • Enables design-around efforts by generics, which can still be constrained by enforceable claim scope

Formulation protection categories

  • Core controlled-release matrix design.
  • Additives that change release kinetics and physical deterrence behavior.
  • Abuse deterrent mechanisms that attempt to preserve tablet integrity after manipulation.

Design-around pressure

Generic firms often pursue:

  • Alternative matrices that preserve dissolution profile but avoid infringing specific formulation claims.
  • Manufacturing process changes that avoid method claim limitations.
  • Particle engineering variations that attempt to maintain functional equivalence without identical structure.

How courts often impact these strategies

  • If claims are construed around specific structural features, design-arounds can succeed.
  • If claims are drafted to capture functional performance (with sufficient definiteness), generics may need to demonstrate performance deviation, which is harder.

What method-of-use patents does Purdue Pharma hold for pain indications, dosing, and patient selection?

Method-of-use patents attempt to extend enforceability beyond formulation by tying claims to:

  • Chronic pain treatment regimens
  • Specific dosing schedules or titration steps
  • Patient subset selection criteria that narrow infringement theories

Why method-of-use patents can matter

  • They can survive even when formulation patents weaken.
  • They can create a second litigation front that blocks “label-congruent” generic substitution.

Where method-of-use claims typically face vulnerabilities

  • Indefiniteness or lack of adequate support.
  • Obviousness in light of existing pain-management regimens.
  • Difficulties proving infringement because routine prescribing behavior may not match patent steps.

How does Purdue Pharma’s manufacturing and process IP block generic and authorized generics?

Manufacturing process claims can create:

  • additional litigation targets
  • documentary and technical discovery advantages for the brand
  • operational friction if generics must demonstrate non-infringement of process steps

Process IP categories typically used for opioid products

  • Granulation and blending sequences.
  • Tablet press or compression parameter ranges.
  • Coating and drying conditions that preserve controlled release and abuse-deterrent performance.

Enforcement dynamics

Process IP typically reduces risk of straightforward generic entry because competitors need:

  • either design-around
  • or proof of non-infringement tied to process parameter differences

What patent litigation affects Purdue Pharma’s products most, and what are common settlement patterns?

Patent litigation in opioid portfolios typically produces:

  • multi-venue actions with parallel district court disputes
  • settlements that specify entry dates
  • sometimes “carve-out” licenses where only some patents are avoided

Settlement patterns that shape competition

  • Launch delays timed to the “last-to-expire” effective patent for the drug.
  • Agreement to withdraw certain challenged patents or amend carve-outs.
  • Confidential licensing or non-standard agreements, which can still signal a calendar to market entrants.

What are Purdue Pharma’s regulatory milestones with FDA for its opioid products?

FDA regulatory status affects competitive dynamics by:

  • defining the market authorization basis (NDA pathways)
  • controlling labeling scope for indications and patient instructions
  • shaping REMS or risk-management requirements

How FDA status affects generic substitution

  • If labeling is tightly linked to abuse-deterrent instructions and patient monitoring, generic entry hinges on label congruency.
  • Risk-management and REMS commitments influence prescriber acceptance and payer authorization.

Which companies challenge Purdue Pharma with ANDAs, and what does the competitive threat set look like?

The competitive threat set for Purdue-style branded opioids usually includes:

  • large ANDA players with multi-product litigation capabilities
  • mid-tier generics targeting high-volume controlled substances
  • authorized generic strategies by companies with licensing and manufacturing capacity

How to assess threat credibility

  • Whether challengers file multiple strengths or dosage forms.
  • Whether challengers target late-expiring formulation or method-of-use patents.
  • Whether challengers have a history of proceeding through litigation to launch.

How does Purdue Pharma compare with other opioid leaders on abuse-deterrent IP and launch timing?

Purdue’s relative position depends on whether it still holds:

  • enforceable late-expiring formulation and process patents
  • enforceable method-of-use claims that constrain label-congruent substitution
  • a business model that can sustain brand pricing against generic price erosion

Peer benchmarking framework

  • Late-expiring Orange Book patents count
  • Proportion of formulation versus method-of-use listings
  • Litigation count and recency of court rulings
  • Expected settlement calendars that delay ANDA approvals

What commercial and payer pressures influence Purdue’s competitive strategy for pain brands?

Payer behavior in opioid pain is shaped by:

  • opioid stewardship initiatives
  • preferred drug lists and step therapy
  • heightened scrutiny of dosing, morphine milligram equivalents, and duration

Strategic implications

  • Contracting strength becomes as important as IP strength when generics are near entry.
  • Brand value increasingly depends on demonstrable differences in tolerability, safety communications, and prescribing support rather than only deterrent mechanisms.

Key Takeaways

  • Purdue Pharma’s competitive landscape is dominated by opioid pain products with high sensitivity to Orange Book patent timelines and abuse-deterrent formulation IP.
  • Patent strength is measured by enforceability of formulation, manufacturing/process, and method-of-use claims, not by presence of an initial core compound patent.
  • Generic entry risk is driven by the last-to-expire enforceable Orange Book listing and whether Paragraph IV challengers can design around late-expiring formulation or method-of-use claims.
  • Commercial power is constrained by payer and regulatory controls on opioids, which compress margins as generic entry approaches.
  • Competitive differentiation depends on abuse-deterrent design fidelity to label language and on litigation outcomes that narrow claim scope.

FAQs

1) What drives the fastest generic entry for Purdue opioid brands?

The earliest expiration of enforceable Orange Book patents that remain after claim construction and the settlement calendar created by Paragraph IV litigation.

2) Do formulation patents or method-of-use patents matter more for Purdue-style opioid exclusivity?

Formulation and manufacturing/process patents typically define the product-level barrier, while method-of-use patents extend enforceability if courts uphold step-based dosing or patient-selection claim limits.

3) How can generics design around Purdue’s abuse-deterrent formulation patents?

By changing matrices, excipients, and manufacturing parameters so the generic does not meet claim limitations tied to specific structural or performance features.

4) Is REMS status a competitive differentiator for Purdue’s pain brands versus generics?

Yes when REMS or label instructions affect prescriber behavior and payer authorization, shaping real-world uptake and substitution acceptance.

5) Are biosimilars a meaningful threat to Purdue Pharma?

Not in the typical case because Purdue’s core competitive exposure is small-molecule opioid products subject to ANDA pathways rather than biologic replacement via biosimilars.


References (APA)

  1. FDA. Orange Book: Approved Drug Products with Therapeutapeutic Equivalence Evaluations. U.S. Food and Drug Administration. https://www.accessdata.fda.gov/scripts/cder/ob/
  2. FDA. Hatch-Waxman Drug Development and Patent Term Restoration Act: Overview. U.S. Food and Drug Administration. https://www.fda.gov/
  3. FDA. Abbreviated New Drug Applications (ANDA). U.S. Food and Drug Administration. https://www.fda.gov/

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